Pradeep, as per my experience “checkpoint” is the general term in the PMI-ACP exam. We can view the term checkpoint as a point at which a check is performed. The progress is inspected at various checkpoints.

If I talk about Scrum framework, as part of frequent Inspection and Adaptation there are four ceremonies for a Sprint: Sprint Planning Meeting, Daily Scrum, Sprint Review, and Sprint Retrospective.

For more details how inspection and adaptation is done on these points, please refer following video: